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if this book were hotter? what would it do to the table? energy would cascade from the book to the table until they both became the same temperature and they will level off. so that alcohol that's poured on your back has the same temperature as anything else around, but it feels cold. and why does it feel cold, gang? because what is that alcohol doing? what it's doing is what we're gonna be talking about today. it's changing state. it's changing from the liquid state to the gaseous state, okay? and we call that what? begin with ev? evaporation. evaporation, that's right. and we're gonna be learning that evaporation is a cooling process. you know, sometimes you're swimming and you come out and you're all wet, a little breeze come by and you feel kinda chilly. but if no breeze comes by, you don't feel so chilly. and what's going on? when that breeze comes by, what happens to the water on your body? evaporates. it evaporates. when it evaporates, how does your body feel? begin with a c. - cool. - cool. now, we're gonna ask the question hc. why is it that evaporation is a cooling process? and we ca
for joining us! >> sure. >> i felt the sharing of energy, and i believe in energy work. i was wondering if you practice any energy work - >> yes, we do. >> - because i'm a reiki master. do you do that type of work? >> we do a lot of sense of energy and how to move it, work with it, share it. >> which is what i think happened here just now. there was a communal energy joining us. >> definitely a change of - well, to me - also a logical change, a change of - >> i bet we could have recorded it, seriously if we had had the equipment in here to do it. >> i think you're right. >> go ahead, warren. >> i've had an interesting experience. starting, i thought, water is more primal than anything. but then, as i listened to the others, i thought, you can't have one without the other. >> good point. >> i mean, it was a totality. and one can't say, "because i'm not fire, i'm worthless," and breath can't say, "because i'm not water, i'm useless, or i'm better than the other one." and when you mixed it - >> i could feel that. i was standing here sort of self-consciously, thinking, "i have no idea what to say.
here in germany. it is freezing. probably a good time to have an energy-efficient home or apartment. >> there are lots of creative ways of doing it. the latest trends are being presented right now in germany. >> we decide to take a look at one way to go green, literally. it involves something that you might not expect for heating. algae. >> scientists spent five years trying to find an algae culture that could be used to heat buildings. martin developed the system and now they are launching the test phase. >> we do not have any prior experience. we are kind of writing the book. >> the algae building is a world premiere, but growing algae could soon set a precedent for others because the algae only need a few nutrients, carbon dioxide, and some might in order to produce heat and valuable bio mass. >> if we take a look at our efficiencies, you could say we went back 10% of the night as biomass and harnessed 38% as heat. that's means i recover 48% of the light absorbed by the algae. in solar cells, it is only around 12% to 15%. >> and construction materials and energy systems are key t
a number of agreements on trade and energy. the russians very much need chinese assistance in the far east. what we might expect out of this could be a pipeline from russia into china. the russians need to diversify their energy. they are too dependent on the europeans. the chinese are the world's top energy consumer today need russian gas. they will be potentially looking to sign deals on the subject of arms. big exporter of arms to the chinese. that fits in with their geopolitical alignments. the russians really have -- really need money from the chinese to help develop their far east, which is a very underdeveloped part of russia. they will be looking for china's investment, not just materials, but investment in manufacturing and infrastructure. president putin has said he needs china's wind in russia's economic sale. >> the un is launching an investigation into what it calls suspected human rights violations in north korea. diplomats want to look into allegations of torture, food deprivation, and forced labor by the government. the north korean ambassador to the un has denounced that r
, "you know, i like the energy and the clear thinking that healthy food choice allows." it's still my mantra. "the human condition" is a 26-part series about health and wellness. for more information on this program, and accompanying materials, call: or, visit us online at: narrator: people who exercise regularly have a 43% lower risk of premature death compared to those who are sedentary. are you physically fit? can your body respond to the demands that are placed on it? technology has made life easier, but it has also made us less active. nearly 1/4 of american adults are sedentary. another 1/3 aren't physically active enough to be considered fit. "physically fit" is being able to do whatever you want to do without restriction, either with your body or with endurance. to reach that level of fitness, we need more than just a walk from the parking lot to the mall. we need exercise. thomas mirich: the need for regular exercise transcends not just the need to be able to participate in sports activities, but it really covers the whole gamut from youth 'til 80s, 90-year age group. it's be
on their lives. commercial cooking energy like natural gas and electricity command more potential. simple, but effective measures would help address the problem. >> ventilation holes, chimneys, and clean stoves, fixed on an elevated surface. enough space for them to keep stock off would -- a stock of wood which would not get wet. >> most women would welcome any improvement. the country would reduce its disease burden.
closer to new cures, harness new energy and have helped transform us in the high-tech homes of our global economy. we stand together because we share a commitment to helping our fellow human beings around the world. when the earth shakes and floods come, our doctors and rest was reached out to help. when people are suffering, from africa to asia, we partnered to fight disease and overcome hunger. piecend together because must come to the holy land. for even as we are clear-eyed about the difficulties we never lose sight of the vision of israel at peace with its neighbors. so, as i began this is it let me say as clearly as we can, the united states of america stands with the state of israel because it is in our fundamental national security interests, it makes us both stronger, it makes us both a more prosperous, and it makes the world a better place. that is why -- [applause] the united states it was the very first nation to recognize the state of israel 65 years ago. that is why the star of david and the stars and stripes flying together today. that is why i am confident in declaring tha
for renewable energy. still to come here on the newshour -- >> we'll tell you why this colony of penguins in argentina could be under threat. and we'll see a sweet strike. stay with us. ♪ ♪ >> welcome back. now it's breeding season for the penguins of argentina. each year they migrate to the same part of southern argentina at the same time to have their chicks. as we get a report, from the island, their future is now under threat. >> it is one of the largest penguin colonies in the world. around one million of them gather every year between september and april in the southern province. here they mate and build their nests and care for their chicks. but those working in the area are concerned that the penguins do not have enough food. we are seeing fewer and fewer penguin chicks. we believe it is hunger, when there is a chick, one parent goes to fish and the other one stays. they genuinely come back in one week. but this year we noticed they go and takes them weeks to come back and if they don't, the other parent goes and the chick dies. >> those who do make it back feed their chicks b
is you're getting more energy in the air at nighttime than you are in the day 'cause the sound is being bent. the waves are being bent. we don't say waves bend because one part is going faster than another. we have a name for that. what's it called, gang? - refraction. - refraction. we say the wave is refracted. one part is going faster than the other because of a speed change. what underlies the phenomenon of refraction? some people say, "what? you gotta have a speed change there somewhere." what do you say? begin with y and with p. try it. yup. yup. and that's true. so refraction is a change in the direction of a wave by virtue of a speed change. refraction. sound refracts like this. does that have something to do with the refraction of light? it turns out that anything that we call a wave will exhibit the properties of waves. and one of those properties is refraction. and here, i'm talking about sound refracts. guess what we're gonna talk about later, gang? - light-- - light refracts, okay. we talked about sound interference. later on, we'll talk about light interference. we talk abo
deep within the earth. their hidden presence may have charged the sacred precinct with spiritual energy. the olmec world was alive with unseen spirits that contrled all natural phenomena. thunder cracks ) rresent the power of these mysterious forces, olmec artists combined features of the most fearsome predators of the jungle, creating hybrid images of awe- inspiring supernatural beings. irual leaders, or shans, lied humans to the fors controinthe uner peleelieved that the sha could slo epraesr shans, and magically transform themselves tohepe oa jaguar transported by thianimal spirit, they road e cosmos gaining knowledge that allowed them to ensure rich harvests, heal the sick and protect the community. rulers also claimed the power to mediate between human and spiritual realms. some are shown cradling a supernatural infant-- part human, part jaguar-- who may have been their link to the spiritual world. similar figures appear on sculptures found at la venta thtirling med to be altars. but decades later, a clue to their true function was discovered far from the coast, at thentainous site
Search Results 0 to 9 of about 10

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